Tailoring the Dimensionality of 2D/3D Heterojunctions for Inverted Perovskite Solar Cells

Li C, Zhang K, Maiti S, Peng Z, Tian J, Park H, Byun J, Xie Z, Dong L, Qiu S, Bornschlegl A, Liu C, Zhang J, Osvet A, Heumüller T, Christiansen SH, Halik M, Unruh T, Li N, Lüer L, Brabec C (2024)

Publication Language: English

Publication Type: Journal article

Publication year: 2024

Journal

ACS Energy Letters American Chemical Society

Book Volume: 9

Pages Range: 779-788

Journal Issue: 3

DOI: 10.1021/acsenergylett.4c00045

Abstract

Interface engineering is crucial to achieving stable perovskite photovoltaic devices. A versatile approach is developed to tailor interface properties via integrating co-assembled monolayers (co-SAMs) at the p-type buried interface and by capping a two-dimensional (2D) perovskite layer at the n-type upper interface with vacuum quenching. Optimized co-SAMs promote the coverage of the hole transport layer, significantly reducing the incidence of leakage currents. Based on this foundation, we develop damp-heat-stable perovskite solar cells by precisely tailoring the fragments of 2D perovskite layers through vacuum annealing with phenethylammonium iodide. An impressive open-circuit voltage of 1.216 V is achieved, corresponding to 92% of the value determined by the detailed-balance limit, along with a power conversion efficiency of 23.68%. Ultimately, integrating co-SAMs and the vacuum-assisted annealing fabricated devices maintain 96% and 80% of initial efficiencies after 1200 and 500 h of tracking at a maximum power point under 55 and 85 °C, respectively.

Authors with CRIS profile

Chaohui Li Institute Materials for Electronics and Energy Technology (i-MEET) Kaicheng Zhang Institute Materials for Electronics and Energy Technology (i-MEET) Santanu Maiti Lehrstuhl für Kristallographie und Strukturphysik Zijian Peng Institute Materials for Electronics and Energy Technology (i-MEET) Jingjing Tian Institute Materials for Electronics and Energy Technology (i-MEET) Hyoungwon Park Professur für Werkstoffwissenschaften (Polymerwerkstoffe) Jiwon Byun Graduiertenkolleg 2861, Planare Kohlenstoffgitter Zhiqiang Xie Institute Materials for Electronics and Energy Technology (i-MEET) Lirong Dong Institute Materials for Electronics and Energy Technology (i-MEET) Shudi Qiu Institute Materials for Electronics and Energy Technology (i-MEET) Andreas Bornschlegl Institute Materials for Electronics and Energy Technology (i-MEET) Chao Liu Institute Materials for Electronics and Energy Technology (i-MEET) Jiyun Zhang Institute Materials for Electronics and Energy Technology (i-MEET) Andres Osvet Institute Materials for Electronics and Energy Technology (i-MEET) Thomas Heumüller Institute Materials for Electronics and Energy Technology (i-MEET) Marcus Halik Professur für Werkstoffwissenschaften (Polymerwerkstoffe) Tobias Unruh Professur für Nanomaterialcharakterisierung (Streumethoden) Ning Li Institute Materials for Electronics and Energy Technology (i-MEET) Larry Lüer Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Fraunhofer-Institut für Keramische Technologien und Systeme (IKTS) DE Germany (DE)

How to cite

APA:

Li, C., Zhang, K., Maiti, S., Peng, Z., Tian, J., Park, H.,... Brabec, C. (2024). Tailoring the Dimensionality of 2D/3D Heterojunctions for Inverted Perovskite Solar Cells. ACS Energy Letters, 9(3), 779-788. https://doi.org/10.1021/acsenergylett.4c00045

MLA:

Li, Chaohui, et al. "Tailoring the Dimensionality of 2D/3D Heterojunctions for Inverted Perovskite Solar Cells." ACS Energy Letters 9.3 (2024): 779-788.

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